June 6, 2006

The new Photo Research PR-680 SpectraScan Duo combines the color accuracy of a spectroradiometer with the sensitivity and speed of a photometer. This is achieved by integrating a 256 sensor linear diode array spectroradiometer with a PMT-based photometer - all in a single battery-powered hand-held instrument. Features include a high-resolution touch-screen color display, four automated apertures, USB and Bluetooth connectivity, and SD measurement storage.

February 16, 2005

LR-127 LED Analyzer for PR-650, PR-705/715 and PR-880

The LR-127 is an optical accessory designed to measure discrete (3 mm or 5 mm packages) LEDs for parameters recommeded by CIE 127 Technical Report - Measurement of LEDs. Per this report the average luminous intensity (candelas) of the LED is determined by making two measurements - one measurement is made at a 2° cone (Condition A) and the second through a 6.5° cone (Condition B). The two readings are then averaged.

The LR-127 makes both measurements simply by sliding a lever to the A or B position. This means that the user does not have to change accessories to make both measurements.